[R] Working with string

[Bert Gunter]

Christofer:

You may have to fortify the following a bit to allow for the
possibility that some of your caps strings don't match. But other than
that, I think this will do:

> CH <- c("aBd", "sTb", "ABD", "dFDasd", "asd", "DFDASD")
> caps <- CH %in% z
> noncaps <- CH[!caps]
> chnew <- CH
> chnew[caps] <- noncaps[match(CH[caps], toupper(noncaps))]
> CH
[1] "aBd"    "sTb"    "ABD"    "dFDasd" "asd"
[6] "DFDASD"
> chnew
[1] "aBd"    "sTb"    "aBd"    "dFDasd" "asd"
[6] "dFDasd"

Cheers,
Bert

On Sun, Aug 11, 2013 at 5:39 AM, Christofer Bogaso
<bogaso.christofer at gmail.com> wrote:
> Hello again,
>
> Let say I have a lengthy character vector like:
>
> CH <- c("aBd", "sTb", "ABD", "dFDasd", "asd", "DFDASD")
>
> Now I want to create a vector like:
>
> CH_New <- c("aBd", "sTb", "aBd", "dFDasd", "asd", "dFDasd")  ## the 3rd and
> 6th element replaced
>
> Basically, the goal is:
>
> If an element has all upper case then it will find another element with all
> lower case or mix of upper/lower case. Then the all-upper-case element will
> be replaced by that mix. If there is multiple match then chose the first
> one.
>
>
> Can somebody give me any pointer how can I achieve that?
>
> Thanks and regards,
>
>         [[alternative HTML version deleted]]
>
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-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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